drm/amdgpu: add user space CS support for VPE

Enable command submission to VPE from user space.
Signed-off-by: Lang Yu <Lang.Yu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c

@@ -42,6 +42,7 @@ const unsigned int amdgpu_ctx_num_entities[AMDGPU_HW_IP_NUM] = {
 	[AMDGPU_HW_IP_VCN_DEC]	=	1,
 	[AMDGPU_HW_IP_VCN_ENC]	=	1,
 	[AMDGPU_HW_IP_VCN_JPEG]	=	1,
+	[AMDGPU_HW_IP_VPE]	=	1,
 };
 
 bool amdgpu_ctx_priority_is_valid(int32_t ctx_prio)

drivers/gpu/drm/amd/amdgpu/amdgpu_fdinfo.c

@@ -51,6 +51,7 @@ static const char *amdgpu_ip_name[AMDGPU_HW_IP_NUM] = {
 	[AMDGPU_HW_IP_VCN_DEC]	=	"dec",
 	[AMDGPU_HW_IP_VCN_ENC]	=	"enc",
 	[AMDGPU_HW_IP_VCN_JPEG]	=	"jpeg",
+	[AMDGPU_HW_IP_VPE]	=	"vpe",
 };
 
 void amdgpu_show_fdinfo(struct drm_printer *p, struct drm_file *file)

drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c

@@ -469,6 +469,13 @@ static int amdgpu_hw_ip_info(struct amdgpu_device *adev,
 		ib_start_alignment = 16;
 		ib_size_alignment = 16;
 		break;
+	case AMDGPU_HW_IP_VPE:
+		type = AMD_IP_BLOCK_TYPE_VPE;
+		if (adev->vpe.ring.sched.ready)
+			++num_rings;
+		ib_start_alignment = 256;
+		ib_size_alignment = 4;
+		break;
 	default:
 		return -EINVAL;
 	}